20565720

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{8161}}^1$

素因数の和:8185

約数の個数: 96

約数和(自身を含む): 76396320

約数和(自身を除く): 55830600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520, 8161, 16322, 24483, 32644, 40805, 48966, 57127, 65288, 73449, 81610, 97932, 114254, 122415, 146898, 163220, 171381, 195864, 228508, 244830, 285635, 293796, 326440, 342762, 367245, 457016, 489660, 514143, 571270, 587592, 685524, 734490, 856905, 979320, 1028286, 1142540, 1371048, 1468980, 1713810, 2056572, 2285080, 2570715, 2937960, 3427620, 4113144, 5141430, 6855240, 10282860, 20565720]

約数ペア:

[(1, 20565720), (2, 10282860), (3, 6855240), (4, 5141430), (5, 4113144), (6, 3427620), (7, 2937960), (8, 2570715), (9, 2285080), (10, 2056572), (12, 1713810), (14, 1468980), (15, 1371048), (18, 1142540), (20, 1028286), (21, 979320), (24, 856905), (28, 734490), (30, 685524), (35, 587592), (36, 571270), (40, 514143), (42, 489660), (45, 457016), (56, 367245), (60, 342762), (63, 326440), (70, 293796), (72, 285635), (84, 244830), (90, 228508), (105, 195864), (120, 171381), (126, 163220), (140, 146898), (168, 122415), (180, 114254), (210, 97932), (252, 81610), (280, 73449), (315, 65288), (360, 57127), (420, 48966), (504, 40805), (630, 32644), (840, 24483), (1260, 16322), (2520, 8161)]